EP2055870A1 - A key for use in a cylinder lock and key system - Google Patents

A key for use in a cylinder lock and key system Download PDF

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Publication number
EP2055870A1
EP2055870A1 EP08022530A EP08022530A EP2055870A1 EP 2055870 A1 EP2055870 A1 EP 2055870A1 EP 08022530 A EP08022530 A EP 08022530A EP 08022530 A EP08022530 A EP 08022530A EP 2055870 A1 EP2055870 A1 EP 2055870A1
Authority
EP
European Patent Office
Prior art keywords
key
tumbler
lock
key blade
code
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Withdrawn
Application number
EP08022530A
Other languages
German (de)
English (en)
French (fr)
Inventor
Bo Widen
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Winloc AG
Original Assignee
Winloc AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Winloc AG filed Critical Winloc AG
Publication of EP2055870A1 publication Critical patent/EP2055870A1/en
Withdrawn legal-status Critical Current

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Classifications

    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0082—Side bar locking
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B15/00—Other details of locks; Parts for engagement by bolts of fastening devices
    • E05B15/14—Tumblers
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B19/00—Keys; Accessories therefor
    • E05B19/0017—Key profiles
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0003—Details
    • E05B27/0017—Tumblers or pins
    • E05B27/0021—Tumblers or pins having movable parts
    • E—FIXED CONSTRUCTIONS
    • E05—LOCKS; KEYS; WINDOW OR DOOR FITTINGS; SAFES
    • E05B—LOCKS; ACCESSORIES THEREFOR; HANDCUFFS
    • E05B27/00—Cylinder locks or other locks with tumbler pins or balls that are set by pushing the key in
    • E05B27/0078—Asymmetrical tumbler pins, e.g. with a key operating on a radial protrusion of a tumbler pin
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers
    • Y10T70/7599—Transverse of plug
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers
    • Y10T70/7599—Transverse of plug
    • Y10T70/7605—Pin tumblers
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/7486—Single key
    • Y10T70/7508—Tumbler type
    • Y10T70/7559—Cylinder type
    • Y10T70/7588—Rotary plug
    • Y10T70/7593—Sliding tumblers
    • Y10T70/7599—Transverse of plug
    • Y10T70/7616—Including sidebar
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T70/00—Locks
    • Y10T70/70—Operating mechanism
    • Y10T70/7441—Key
    • Y10T70/778—Operating elements
    • Y10T70/7791—Keys
    • Y10T70/7881—Bitting

Definitions

  • the present invention concerns a key for use in a cylinder lock and key system, including a lock having a cylinder shell, a key plug which is rotatably mounted in said shell, a longitudinal key slot extending along said key plug in parallel to the rotational axis for receiving a key blade, and a key having, at a side surface thereof, a longitudinally extending coded surface, at least one looking tumbler assembly having a body segment with a contact portion reaching into said key slot so as to engage with said coded surface of a properly shaped key blade upon insertion thereof into said key slot, and at least one cavity located at a transversal side of said key slot in said key plug, said cavity accommodating an associated one of said at least one tumbler assembly and guiding the latter for elevational movement therein.
  • each tumbler assembly has a finger portion projecting outwardly therefrom, either in different angular directions or at different positions, such that the longitudinal distribution of the outer ends (contact portions) of the finger portions generally differs from the normally regular distribution of the locking tumblers themselves in the longitudinal direction, i.e. in parallel with the key slot.
  • Each tumbler assembly is elevationally movable in the associated cavity and, in addition, the specific position of the contact portion in said longitudinal direction along the key slot provides further code possibilities.
  • a cylinder lock and key system comprising a key with a longitudinally extending groove which forms a wave-like code surface and cooperates with a number of contact fingers protruding transversally from a respective locking tumbler.
  • the tumblers are spaced at regular mutual distances along the key slot, and the groove at the side of the key has evenly distributed code surface portions, each being positioned in registry with an associated locking tumbler.
  • the object of the present invention is to provide key for use in a high security lock and key combination of the aforementioned kind with an even higher number of code combinations than the known systems and providing an even higher security against picking.
  • this object is achieved for a key adapted for use in combination with a lock having at least one locking tumbler assembly which comprises a pair of adjacent tumbler body segments accommodated in the same cavity, each tumbler body segment having a contact portion (not necessarily in the form of a finger) reaching into the key slot.
  • the adjacent tumbler body segments in said pair are guided in said cavity for elevational movement independently of each other.
  • the adjacent body segments in the pair are individually displaced into respective elevational positions while being engaged, at said contact portions, by the coded side surface of the key blade upon insertion thereof into the key slot.
  • the associated contact portions in the pair of tumbler body segments are axially separated in the longitudinal direction of the key plug such that these contact portions will be positioned at elevationally specific and generally different levels when being engaged by the coded side surface of the key blade upon insertion thereof.
  • each tumbler assembly comprises a pair of adjacent tumbler segments.
  • these segments in a pair are coupled to each other by a spring acting to separate the two segments in opposite direction from each other.
  • the two segments have a limited mobility.
  • the associated contact portions in the pair are located in close vicinity to each other. Therefore, in order to cooperate properly with a coded surface on a key blade, they must be positioned at approximately the same level.
  • the two body segments in a pair can be located in many different relative positions.
  • the other body segment can be positioned in various positions. Accordingly, the total number of code combinations is very high.
  • the contact portions of a pair are located relatively close to each other, although they are axially separated from each other, it is very difficult to manipulate one contact portion without also displacing the other one. Therefore, the lock has a very high level of security against picking.
  • A.key according to the present invention (and a corresponding key blank) comprises a key blade having, at a side surface thereof, a longitudinally extending coded side surface with longitudinally spaced code surface portions each representing an element of a key code comprising: at least one pair of neighbouring code surface portions located at elevationally specific and generally different levels for co-operation with a respective contact finger of a side tumbler of a lock, wherein said pair of neighbouring code surface portions are longitudinally separate and represent two different key code elements.
  • the lock and key combination shown in figure 1 includes a cylinder lock 1 and a key 2 with a key blade 200 which is insertable into a key slot 100 of the lock.
  • the profile of the key blade 200 is shown in cross-section in figure 5 and corresponds generally to the profile of the key slot 100.
  • the locking function i.e. the locking of the key plug 130 against rotation within the cylindrical shell 140 is effected by a fence member or side bar 150.
  • the side bar 150 is spring-loaded radially outwardly so as to fit into a longitudinally extending seating recess 151 ( fig. 5 ) in the cylindrical shell 140.
  • the side bar 150 is kept in locking position ( fig. 4 ) unless the tumbler assembly 110 is positioned in such a way, upon insertion of a properly coded key blade into the key plug, that the side bar 150 can fit into mutually aligned recesses 111, 112. In the position illustrated in figure 2 , however, these recesses 111, 112 are not aligned and the side bar 150 will then be unable to move from its blocking position ( figure 4 ).
  • the tumbler assembly 110 comprises a pair of adjacent tumbler body segments 113, 114 (see fig. 3 ), which are guided in the same cavity but are elevationally movable independently of each other therein. Because of the separate mobility of these two body segments 113, 114, they can be individually displaced so that the recesses 111, 112 become mutually aligned. Now, the side bar 115 can be brought into the aligned recesses 111, 112, as illustrated in fig. 5 . Thus, upon alignment of the recesses 111,112, the side bar 150 can be moved into this releasing position by applying a rotating force onto the key plug 130. Then, the side bar 150 will be forced to move radially inwards against the action of the springs 152.
  • the two tumbler body segments 113,114 preferably have supplementary cross-sections so as to occupy a respective portion of the cavity 120 and be guided within this cavity in a well-defined manner without tilting or rotating relative to the central axis of the cavity.
  • the cavity 120 is circular-cylindrical, and the tumbler body segments 113,114 have part-cylindrical surface portions being guided by the cylindrical wall of the cavity 120.
  • the two tumbler body segments 113,114 in the pair also have mutually contacting surface portions 113a, 114a, which permit a relative sliding movement therebetween. In the illustrated embodiment, these mutually contacting surface portions are planar, but they could have any other geometrical form permitting a sliding contact.
  • the cavity may have some other cross-sectional configuration, e.g. rectangular, and the tumbler body segments may be adapted to such a configuration so as to ensure a good guidance within the cavity.
  • the movement of the separate body segments 113, 114 of the locking tumbler assembly 110 is accomplished by means of the key blade 200 according to the invention, having, at a substantially planar side surface 201 thereof, a longitudinally extending coded side surface 203 forming part of a groove 202 in the illustrated embodiment.
  • the groove 202 has a bottom wall and upper and lower sidewalls.
  • the lower sidewall 203 forms a wave-like coded surface, which in this embodiment includes two neighbouring code surface portions 204, 205. These code surface portions 204, 205 are designed to receive a respective contact portion, in the form of an outwardly projecting finger 115, 116, on each tumbler body segment 113,114.
  • each contact finger has a relatively wide base portion 115a and 116a, respectively, and a relatively narrow, substantially cylindrical free end portion 115b and 116d, respectively.
  • the longitudinal groove 202 has substantially parallel upper and lower sidewalls so as to positively guide the respective fingers 115,116.
  • the groove 202 may be much wider than the diameter of the end portion 115b, 116b of the respective finger.
  • the fingers are preferably spring-loaded (see figs. 8 and 9 ) so as to engage slidingly with the lower coded sidewall 203 and the coded surface portions 204, 205.
  • the key blade 200' ( fig. 6b ) is provided with grooves 202' on each lateral side. These grooves may be undercut, if so desired (see also figs. 11 and 12 ).
  • each cavity 120,121 there is a tumbler assembly 110 comprising two independently movable body segments 113, 114 of the kind shown in figs. 2 and 3 .
  • Each tumbler assembly 110 cooperates with a side bar 150 in the manner described above.
  • the key blade 200 ( fig.6b ) is symmetrical, so that it can be turned upside down and still work properly in co-operation with the key slot 100 and the fingers 115, 116 of the respective tumbler assemblies 110.
  • the lock may have a longitudinal row of tumbler assemblies 110 (five in a row), each tumbler assembly having a pair of independently movable body segments 113, 114 with associated contact fingers 115, 116.
  • each tumbler assembly has a pair of independently movable body segments 113, 114 with associated contact fingers 115, 116.
  • all the contact fingers 115, 116 will be positively guided by the longitudinally extending coded groove 202, which in this case has ten different code surface portions each being located at a specific code level.
  • These code surface portions 204, 205 are grouped into five pairs each comprising two neighbouring code surface portions 204, 205.
  • the neighbouring code surface portion 205 may be located in at least two or possibly three, four, five or even a higher number of different levels.
  • each such level for each code surface portion represents a key code element, and the total number of key code combinations will be very great.
  • the total number of key code combinations may be substantially increased by also providing an ordinary code pattern at the longitudinal top edge surface of the key blade 200, as indicated by the numeral 206 in figure 7 .
  • each body segment 113, 114 may alternatively be spring-loaded, as indicated in figures 8 and 9 , by means of helical springs 117 seated in holes 118 at the top end of each body segment 113, 114.
  • a central tumbler 131 one in a longitudinal row of such tumblers co-operating with the coded cuts or dimples 206 in the edge portion of the key blade 200.
  • the key blade 200 has an undercut groove 202" co-operating with a corresponding profile tongue 132 having a downwardly projecting portion 133 fitting into the undercut portion of the groove 202" of the key blade.
  • At least one tumbler assembly 110 comprising a pair of body segments 113, 114 being elevationally movable independently of each other while engaging (with its associated contact portion or finger 115, 116) the coded groove 202 of the key blade 202, when the latter is inserted into the lock.
  • a very great number of code combinations is obtainable, and the lock has a very high security against picking, as explained above.
  • the tumbler body portions 113, 114 are illustrated to be substantially half-cylindrical with two mutually engaging, substantially flat surfaces 113a, 114a ( fig.3 ). Of course, other geometrical shapes are also possible as long as the two body portions are properly guided within the associated cavity 120 and are capable of moving independently of each other while being engaged, by way of the contact portions or fingers, with the coded surface at the key blade.
  • the key blade can be furnished with coded bittings and/or dimples on other surfaces corresponding to tumbler mechanisms of various kinds, such as coded dimples on the respective edge portions of the key blade of fig. 6b cooperating with centrally located pin tumblers (not shown) in fig. 6a .
  • the coded surface may be formed on a step surface or shelf forming a transition between a massive base portion of the key blade and an upper, narrower portion thereof.
  • the outwardly projecting finger 115,116 does not have to be located at an end portion of the associated tumbler but could be located somewhere between these end portions.
  • Such an embodiment is shown in figs. 14, 15 and 16 .
  • the tumbler segments 114 have a length (or height) corresponding to the key plug 130.
  • the cavity 120 adjoins corresponding cylindrical cavities in the shell 140.
  • the tumbler segment 114 locks the key plug against rotation, unless it is located exactly in the position shown in fig. 15 . Then, the key plug can be rotated by turning the key blade 200.
  • the contact portion of the tumbler body segment 113,114 does not have to be formed as a finger but may have any other geometrical shape as long as the contact portion reaches into the key slot so as to engage with the coded surface of the key blade. Also, the contact portion does not have to project outwardly sideways. It may even form a part of the (cylindrical) tumbler body segment itself.
  • the cavity may have a different cross-sectional shape, such as elliptic, rectangular or polygonal, and the two tumbler body segments should then be adapted to such a configuration.
  • the cavities may have any suitable angle (0 - 90 degrees) to the central plane of the key slot.
  • the locking mechanism may be combined with other locking mechanisms in the same lock.
  • One locking mechanism may be provided on one transversal side of the key slot, whereas another mechanism, possibly also in accordance with the present invention, may be arranged on the other transversal side of the key slot.
  • conventional locking tumbler pins may also be located centrally above the key slot.

Landscapes

  • Lock And Its Accessories (AREA)
  • Braking Arrangements (AREA)
EP08022530A 2002-01-23 2003-01-17 A key for use in a cylinder lock and key system Withdrawn EP2055870A1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
SE0200182A SE524645C2 (sv) 2002-01-23 2002-01-23 Kombination av högsäkerhetslås och nyckelblad
EP03731862A EP1468153B1 (en) 2002-01-23 2003-01-17 High security lock and high security lockand key combination

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
EP03731862A Division EP1468153B1 (en) 2002-01-23 2003-01-17 High security lock and high security lockand key combination

Publications (1)

Publication Number Publication Date
EP2055870A1 true EP2055870A1 (en) 2009-05-06

Family

ID=20286736

Family Applications (2)

Application Number Title Priority Date Filing Date
EP08022530A Withdrawn EP2055870A1 (en) 2002-01-23 2003-01-17 A key for use in a cylinder lock and key system
EP03731862A Expired - Lifetime EP1468153B1 (en) 2002-01-23 2003-01-17 High security lock and high security lockand key combination

Family Applications After (1)

Application Number Title Priority Date Filing Date
EP03731862A Expired - Lifetime EP1468153B1 (en) 2002-01-23 2003-01-17 High security lock and high security lockand key combination

Country Status (29)

Country Link
US (2) US7370502B2 (es)
EP (2) EP2055870A1 (es)
JP (1) JP4048177B2 (es)
KR (1) KR100646072B1 (es)
CN (1) CN100557178C (es)
AP (1) AP1793A (es)
AR (1) AR041496A1 (es)
AT (1) ATE557150T1 (es)
AU (2) AU2003238098B2 (es)
BR (2) BR0306916B1 (es)
CA (1) CA2472484C (es)
CL (1) CL2010001640A1 (es)
DK (1) DK1468153T3 (es)
EA (1) EA005744B1 (es)
EG (1) EG23251A (es)
ES (1) ES2383291T3 (es)
HK (1) HK1072794A1 (es)
IL (1) IL163093A (es)
IS (2) IS2872B (es)
MX (1) MXPA04007148A (es)
MY (1) MY137528A (es)
NO (1) NO337382B1 (es)
NZ (1) NZ533919A (es)
PL (1) PL206987B1 (es)
PT (1) PT1468153E (es)
SE (1) SE524645C2 (es)
TW (1) TWI227298B (es)
WO (1) WO2003062570A1 (es)
ZA (1) ZA200405090B (es)

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DE102013103790A1 (de) 2013-04-16 2014-10-16 C.Ed. Schulte Gesellschaft mit beschränkter Haftung Zylinderschlossfabrik Kodierung über Sperrbalken
CN106460405A (zh) * 2014-02-28 2017-02-22 施拉奇锁有限责任公司 模块化锁芯
IT201600114296A1 (it) * 2016-11-11 2018-05-11 Mg Serrature S P A Dispositivo di chiusura ad elevata sicurezza
EP4253699A1 (de) * 2022-03-28 2023-10-04 Aug. Winkhaus GmbH & Co. KG Schlüssel für einen schliesszylinder und schliesszylinder für einen solchen schlüssel

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CZ304492B6 (cs) * 2009-03-09 2014-05-28 Fab, S.R.O. Kombinace válcového zámku a klíče
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CN103711365B (zh) * 2012-10-02 2016-01-20 盖恩斯伯勒硬件工业有限公司 锁组件及将装置在非可闭锁与钥匙可闭锁之间转换的方法
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US20140223977A1 (en) * 2013-02-08 2014-08-14 Hsiu-Chuan Wu Burglarproof lock core assembly
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DE112013007029B4 (de) * 2013-08-20 2021-01-28 Xiamen Make Security Technology Co., Ltd. Diebstahlschutzschlosssystem, umfassend ein Schloss mit Tochterstiften und Mutterstiften
CN103628739B (zh) * 2013-11-01 2016-03-02 贺立平 可在装修前后安全使用的凹槽形工程钥匙
US9587415B2 (en) * 2014-02-25 2017-03-07 Schlage Lock Company Llc Sidebit operated interchangeable core control lug
US9598880B2 (en) * 2014-02-28 2017-03-21 Schlage Lock Company Llc Lock cylinder including modular plug
PL226034B1 (pl) * 2014-05-26 2017-06-30 Regina Niedźwiedź Zamek blokady dzwigni zmiany biegow pojazdu
SE539594C2 (en) 2015-11-06 2017-10-17 Winloc Ag A set of profile members in combination with a key plug, a method to manufacture such a key plug and a combination also including an associated key
DE102016102288A1 (de) 2016-02-10 2017-08-10 Dom Sicherheitstechnik Gmbh & Co. Kg Schlüssel für einen Schließzylinder, Schließzylinder und Schließvorrichtung
EP3507435B1 (en) 2016-09-01 2020-11-11 UrbanAlps AG A key for controlling a lock with a cylindrical plug and a lock for validating this key
US10570643B2 (en) 2017-06-08 2020-02-25 Winloc Ag Cylinder lock core for a cylinder lock unit
US10337210B2 (en) * 2017-06-08 2019-07-02 Winloc Ag Interchangeable cylinder lock core for a cylinder lock unit
FI128051B (fi) 2018-06-15 2019-08-30 Abloy Oy Lukko
KR102213625B1 (ko) 2019-05-20 2021-02-08 백운기 자동으로 잠기는 기계식 자물쇠 어셈블리
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CN100557178C (zh) 2009-11-04

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